First thing in morning when I start my SUV the RPM’s are about 900-1000 RPM. If I start driving immediately, the shifting is good and quick with slight engine vibration. If I wait until the engine idles down to about 625 RPM, there’s a delay (not slipping) in shifting and engine vibration. When I’m in Park and I’m listening to and feeling the idle, there’s a slight dipping sound and feeling in the idle then it returns to a smooth idle. Turning on the A/C the shift delay is longer and the engine vibration increases. Thank you, Ed Ransom
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A vibration could be a misfire or bad engine mounts. If you have a check engine light then scan for codes. The delay could be low trans fluid so check the level and check for leaks.
Alex
